American Express Costco True Earnings: Three percent cash back at gas stations, restaurants (for up to $3,000 of spending at gas stations, then falls to 1 percent), 2 percent on travel, 1 percent elsewhere. There's no annual fee with a Costco membership. Otherwise, the APR is 0% for 6 months and 15.24 percent after.
Capital One No Hassle Cash Rewards: Two percent cash back on gas and at major grocery stores, 1 percent back on everything else. Rewards don't expire and may be redeemed at anytime, and there's no balance transfer fee. (0 percent APR until March 2011, then 14.9 percent after).
Chase Freedom: Five percent cash back in rotating seasonal categories such as gas, groceries, home improvement, and 1 percent on all other purchases. Cash back points never expire. (0% APR for six months, then 12.99 to 22.99 percent after).
Penfed Premium Travel Rewards American Express: You earn 5 points for every dollar spent on airfare, 3 points for each dollar spent on dining and hotels until Dec. 31, 2010, and 1 point per dollar spent elsewhere. There a 20,000-point sign-up offer when you spend $650 in the first three months. There's no foreign transaction fee. Military families join for free and others pay a one-time fee of $20. (13.24 percent APR).
Penfed Visa Platinum Cashback Rewards: Five percent cash back on gas purchases paid at the pump, 2 percent at supermarkets and 1 percent elsewhere. Military families join for free and others pay a one-time $20 fee.